JP2010514549A5 - - Google Patents
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- JP2010514549A5 JP2010514549A5 JP2009543312A JP2009543312A JP2010514549A5 JP 2010514549 A5 JP2010514549 A5 JP 2010514549A5 JP 2009543312 A JP2009543312 A JP 2009543312A JP 2009543312 A JP2009543312 A JP 2009543312A JP 2010514549 A5 JP2010514549 A5 JP 2010514549A5
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- absorbent
- gas stream
- pka
- feed gas
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Claims (19)
- 供給ガス流からCO2を回収する方法であって、当該方法は、
(a)当該供給ガス流を、以下に示す2つの群の中から選択された一つの群に属する、15センチストークスより低い粘度を有する再生された吸収剤により処理して、使用済吸収剤およびCO2の少ないガス流を得る工程、
(i)カルバミン酸を中和するのに十分なpKaを有する第3級アミン官能性の有効量がない状態で、且つ当該供給ガス流が、5容量ppmより低いSO2濃度を有する場合では、25℃で<10.0のpKaを有する少なくとも一つの第1級アミン官能性を有する少なくとも1つのポリアミン、と
(ii)カルバミン酸を中和するのに十分なpKaを有する第3級アミン官能性の有効量がない状態では、それぞれの吸収窒素について、25℃で<10.0のpKaを有する少なくとも1つの第2級アミン官能性を有するポリアミン、
(b)CO2に富んだアミン吸収剤を再生ゾーンへ運ぶ工程、及び
(c)当該吸収剤を3バール以下の圧力で再生する工程、
とから構成されていることを特徴とする供給ガス流からCO2を回収する方法。 - 吸収剤が、(i)群から選ばれ、供給ガス流が、再生された吸収剤により処理される前にSO2吸収剤により処理される請求項1の方法。
- 吸収剤が、(i)群から選ばれ、再生された吸収剤が、求電子官能基を有する化合物を0.001モルより少ない濃度で有する水溶液からなる請求項1の方法。
- 求電子官能基がアルキルヒドロキシ基を含む請求項3の方法。
- 求電子官能基を有する化合物が、アルカノールアミン、二酸化硫黄、亜硫酸塩、重亜硫酸塩およびカルボニル化合物を含む請求項3の方法。
- 吸収剤が、水蒸気ストリッピングにより再生される請求項1の方法。
- 水蒸気ストリッピングが、吸収剤1ポンド(約454g)あたり1.0−2.0ポンド(約454−約908g)の水蒸気を使用して行われる請求項1の方法。
- 再生された吸収剤および使用済吸収剤の吸収剤1モルあたりのCO2負荷の差が、4容量%より多いCO2を含む供給ガスを処理するとき、アミン1モルあたりCO2 0.4−1.0モルである請求項1の方法。
- CO2の少ないガス流が、1容量%より少ないCO2を含む請求項1の方法。
- CO2の少ないガス流が、供給ガス流中のCO2の10%より少ないCO2を含む請求項1の方法。
- CO2の少ないガス流が、供給ガス流中のCO2の50%より少ないCO2を含む請求項1の方法。
- アミンがCO2と反応してアミン塩を形成する請求項1の方法。
- 吸収剤が(i)群から選ばれ、方法が、吸収剤としてジエチレントリアミン(DETA),トリエチレンテトラミン(TETA)およびテトラエチレンペンタミン(TEPA)またはこれらの混合物の少なくとも1つを選ぶことをさらに含む請求項1の方法。
- 再生された吸収剤が、25℃で>6.0のpKaを吸収窒素について有する第3級アミン官能性を有しない請求項1の方法。
- 吸収剤が、25℃で7より大きいpKaを有する第3級アミン官能性を有しない請求項1の方法。
- 吸収剤が、第1級アミンまたは第2級アミンである少なくとも1つのアミンを有しそして各第3級アミン官能性が25℃で7より小さいpKaを有する少なくとも1つの第3級アミン官能性を有する請求項1の方法。
- 各第3級アミン官能性が25℃で6より小さいpKaを有する請求項16の方法。
- 吸収剤がN−(2−ヒドロキシエチル)ピペラジンを含む請求項1の方法。
- 吸収剤がN−(2−ヒドロキシエチル)ピペラジンから本質的になる請求項1の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/616,992 | 2006-12-28 | ||
US11/616,992 US7601315B2 (en) | 2006-12-28 | 2006-12-28 | Process for the recovery of carbon dioxide from a gas stream |
PCT/CA2007/002341 WO2008080221A1 (en) | 2006-12-28 | 2007-12-14 | Process for the recovery of carbon dioxide from a gas stream |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2010514549A JP2010514549A (ja) | 2010-05-06 |
JP2010514549A5 true JP2010514549A5 (ja) | 2011-09-15 |
JP5484067B2 JP5484067B2 (ja) | 2014-05-07 |
Family
ID=39584258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009543312A Active JP5484067B2 (ja) | 2006-12-28 | 2007-12-14 | ガス流からの二酸化炭素の回収方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US7601315B2 (ja) |
EP (1) | EP2097156A4 (ja) |
JP (1) | JP5484067B2 (ja) |
CN (1) | CN101657247B (ja) |
AU (1) | AU2007339756B2 (ja) |
CA (1) | CA2673781C (ja) |
EA (1) | EA016209B1 (ja) |
NO (1) | NO20092701L (ja) |
WO (1) | WO2008080221A1 (ja) |
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-
2006
- 2006-12-28 US US11/616,992 patent/US7601315B2/en active Active
-
2007
- 2007-12-14 AU AU2007339756A patent/AU2007339756B2/en active Active
- 2007-12-14 CA CA2673781A patent/CA2673781C/en active Active
- 2007-12-14 JP JP2009543312A patent/JP5484067B2/ja active Active
- 2007-12-14 CN CN2007800508816A patent/CN101657247B/zh active Active
- 2007-12-14 EA EA200970638A patent/EA016209B1/ru not_active IP Right Cessation
- 2007-12-14 WO PCT/CA2007/002341 patent/WO2008080221A1/en active Application Filing
- 2007-12-14 EP EP07855621A patent/EP2097156A4/en not_active Withdrawn
-
2009
- 2009-07-17 NO NO20092701A patent/NO20092701L/no not_active Application Discontinuation
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